Product Overview
The Cisco GLC-EX-SMD is a 1000BASE-EX SFP transceiver module designed for long-range Gigabit Ethernet connectivity over single-mode fiber (SMF). Operating at a 1310 nm wavelength, it supports distances up to 40 kilometers, making it ideal for metro access networks, service provider environments, and enterprise long-distance backbone connections. It features Digital Optical Monitoring (DOM), allowing real-time performance diagnostics.
Product Details
| Specification | Description |
| Product Model | GLC-EX-SMD |
| Form Factor | SFP (Small Form-Factor Pluggable) |
| Interface Type | 1000BASE-EX |
| Data Rate | 1 Gbps |
| Fiber Type | Single-Mode Fiber (SMF) |
| Connector Type | LC duplex |
| Wavelength | 1310 nm |
| Max Distance | Up to 40 km |
| Digital Optical Monitoring | Yes (DOM supported) |
| Hot Swappable | Yes |
| Operating Temperature | 0°C to 70°C |
| Compliance | IEEE 802.3z, RoHS |
| Cisco Compatibility | Catalyst, Nexus, ISR, ASR, and other platforms |
Product Features
Provides 1 Gbps Ethernet over single-mode fiber up to 40 km
Operates at 1310 nm, optimized for long-haul point-to-point fiber links
Includes Digital Optical Monitoring (DOM) for real-time diagnostics
LC duplex connector for industry-standard fiber connections
Hot-swappable design simplifies deployment and maintenance
Ideal for carrier networks, rural deployments, and metro access backbones
Similar Models Comparison
| Model | Data Rate | Interface | Fiber Type | Max Distance | Wavelength | DOM | Connector |
| GLC-EX-SMD | 1 Gbps | 1000BASE-EX | SMF | 40 km | 1310 nm | Yes | LC |
| GLC-LH-SMD | 1 Gbps | 1000BASE-LX/LH | SMF | 10 km | 1310 nm | Yes | LC |
| GLC-ZX-SMD | 1 Gbps | 1000BASE-ZX | SMF | 70–80 km | 1550 nm | Yes | LC |
| GLC-SX-MM D | 1 Gbps | 1000BASE-SX | MMF | 550 m | 850 nm | Yes | LC |
Latest Cisco 1G Long-Reach SFP Modules
| Model | Fiber Type | Distance | Wavelength | DOM | Use Case |
| GLC-EX-SMD | SMF | 40 km | 1310 nm | Yes | Long-range enterprise & metro |
| GLC-ZX-SMD | SMF | 70–80 km | 1550 nm | Yes | Carrier-grade and metro networks |
| GLC-LH-SMD | SMF | 10 km | 1310 nm | Yes | Backbone and campus networking |
